Planetary hours
in Chicago.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Wednesday, 21 April 2027: day of Mercury
- Sunrise
- 06:01
- Sunset
- 19:38
- Next sunrise
- 05:59
A day hour lasts 1h 08m; a night hour, 52 min. Local time (America/Chicago).
Day
- 1☿︎ Mercury06:01 – 07:09
- 2☽︎ Moon07:09 – 08:17
- 3♄︎ Saturn08:17 – 09:25
- 4♃︎ Jupiter09:25 – 10:33
- 5♂︎ Mars10:33 – 11:41
- 6☉︎ Sun11:41 – 12:49
- 7♀︎ Venus12:49 – 13:57
- 8☿︎ Mercury13:57 – 15:05
- 9☽︎ Moon15:05 – 16:13
- 10♄︎ Saturn16:13 – 17:21
- 11♃︎ Jupiter17:21 – 18:29
- 12♂︎ Mars18:29 – 19:38
Night
- 1☉︎ Sun19:38 – 20:29
- 2♀︎ Venus20:29 – 21:21
- 3☿︎ Mercury21:21 – 22:13
- 4☽︎ Moon22:13 – 23:05
- 5♄︎ Saturn23:05 – 23:57
- 6♃︎ Jupiter23:57 – 00:48
- 7♂︎ Mars00:48 – 01:40
- 8☉︎ Sun01:40 – 02:32
- 9♀︎ Venus02:32 – 03:24
- 10☿︎ Mercury03:24 – 04:16
- 11☽︎ Moon04:16 – 05:08
- 12♄︎ Saturn05:08 – 05:59
Other cities · United States
Questions
How are the planetary hours calculated in Chicago?
On Wednesday, 21 April 2027, the Sun rises at 06:01 and sets at 19:38: the day lasts 13h 37m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 05:59, lasts 10h 22m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Mercury, from 06:01 to 07:09: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.